Originally Posted by YoDog

Hi Mike, something I was told about this from a team driver was that the spool height relative to the axle height has a leveraging characteristic for lack of a better term. If the CVDs are angled upward, they tend to pull the suspension arms downward under torque. In other words, they tend to want to straighten when spinning. If the Spool is high in the bulkheads, they will tend to pull the arms upward. I have found this tuning technique quite valuable on carpet where the traction is high and your car tends to traction roll.